WIll we ever be able to upgrade summoner spells?
I like to look at other MOBAS to see if there can be some elements/mechanics to implement to LoL. One that pops out is SMITE.
In SMITE, SSs are purchasable and can be upgraded.
in LoL if SS were able to be upgraded (and not purchased) then it would allow more diversity in terms of strategic play
example:
Barrier : upgrade 1 - increased shield per level increment (overall buff to base value) upgrade 2 - increased shield per level increment , but the value is divided amongst team members in range
- there can be additional effects of course.